Flight number record
OO 4784
SkyWest Airlines · Fort Wayne to Chicago
- Route
- FWA → ORD
- Departs
- 13:39
- Flights
- 317
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 4784, check with SkyWest Airlines. SkyWest Airlines flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
OO 4784 draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is close to two hours behind schedule. Build slack into anything you connect to. That rests on 317 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.3%, so OO 4784 runs 10 points behind the country as a whole. Across a thousand flights that is about 103 extra late arrivals.
Key figures
On time
67.0%
Arrivals under 15 minutes late, of 303 completed flights
Avg delay
110 min
Across delayed arrivals only, not all flights
Cancelled
4.42%
National rate is 1.89%
1 hour+ late
15.2%
National rate is 8.3%
These figures cover 317 flights between September 2025 and August 2026. Beyond the headline rate, 15.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When OO 4784 flies
OO 4784 flies FWA to ORD without a single fixed slot. Its most common scheduled departure was 13:39, used on 58 of 317 flights, with 13:16 (56 flights) and 13:35 (48 flights) next.
- Departs 13:3958 flights18.3%
- Departs 13:1656 flights17.7%
- Departs 13:3548 flights15.1%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 13:39 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and OO 4784 runs 11 points worse at 67.0%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
OO 4784 next to FWA to ORD
Every carrier on FWA to ORD combined arrived on time 68.1% of the time across 2,812 flights, so OO 4784 is about level with it. SkyWest flew 2,584 flights on the same city pair under all its flight numbers, including this one, and those ran 67.6% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 4784thin sample | 317 | 67.0% | 110 min | 4.42% | C− |
| All SkyWest Airlines on FWA–ORD | 2,584 | 67.6% | 106 min | 4.45% | C− |
| All carriers on FWA–ORD | 2,812 | 68.1% | 104 min | 4.45% | C− |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 4784 quarter by quarter
Quarter by quarter OO 4784 held fairly steady: 66.7% in Oct–Dec 2025, 67.4% in Jan–Mar 2026 and 61.0% in Apr–Jun 2026. A spread of 6 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights—
- Oct–Dec 202591 flights66.7%
- Jan–Mar 202690 flights67.4%
- Apr–Jun 202685 flights61.0%
- Jul–Sep 202621 flights—
Scale runs 55% to 75%. Rows with fewer than 30 flights show a dash.
By weekday, OO 4784 did best on Thursday at 73.8% on time and worst on Friday at 60.0%. Each day rests on about 45 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 4784 runs when it is late
OO 4784 often beats the schedule: 82 of 303 completed flights, 27%, arrived 15 minutes or more early. The 100 late arrivals split 22 under half an hour, 32 between 30 and 60 minutes, and 46 an hour or more.
- 15+ min early82 flights27.1%
- Within 15 min121 flights39.9%
- 15–29 min late22 flights7.3%
- 30–59 min late32 flights10.6%
- 1–2 hours late21 flights6.9%
- 2+ hours late25 flights8.3%
Scale runs 0% to 100%.
Share of 303 completed flights by arrival against schedule.
16 of 95 late departures made up the time and arrived on time, 17% of them. In the other direction, 21 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at ORD.
The worst days
Worst days for OO 4784
The latest arrival of the period was on 10 November 2025, 7 hours 58 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 10 November 2025 | 7 hours 58 minutes | National Airspace System |
| 30 January 2026 | 7 hours 57 minutes | National Airspace System |
| 20 February 2026 | 7 hours 42 minutes | Late-arriving aircraft |
| 6 March 2026 | 7 hours 42 minutes | National Airspace System |
| 18 November 2025 | 7 hours 34 minutes | Carrier |
Delay causes
Why OO 4784 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 11,000 reported delay minutes.
- 38%Late-arriving aircraft
- 34%National Airspace System
- 18%Carrier
- 10%Extreme weather
38% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 11,000 reported delay minutes here, that single category outweighs weather by 4 to one. The split is drawn from 10,955 delay minutes reported on OO 4784.
Cancellations run at 4.42%, against 1.89% nationally. That is roughly one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
15.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The same number turns up on one other city pair in the data, including ORD to CRW (47), but none flew often enough under OO 4784 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to FWA to ORD only.
One caution: this is a thin sample. 317 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking OO 4784
For a booking, the cancellation rate is the figure to plan around on OO 4784: 4.42% of its 317 scheduled flights did not operate. A late arrival costs close to two hours, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- FWA to ORD, every carrier and departure
- ORD to FWA, the return direction
- SkyWest Airlines 5436 on the same route54.9%
- SkyWest Airlines 5466 on the same route50.0%
- Chicago O'Hare International (ORD) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means SkyWest Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.